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Disclosery

AON AON PLC

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Stock (common), issuer CIK 315293

1,216 managers (1,257 13F filers) reported a position in AON shares at 2026-03-31, 187,586,293 shares in all. 117 filers opened a position and 147 filers sold out during the quarter.

Managers
1,216
13F filers
1,257
New
117
Added
484
Reduced
417
Sold out
147
Shares held by filers
187,586,293

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
TUDOR INVESTMENT CORP ET AL61,000$19.7M0.11%new13F-HRTimeline
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A58,883$19M0.06%-10,65413F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…58,801$19M0.1%-1,99613F-HRTimelineGroup
Czech National Bank58,418$18.9M0.12%+1,74213F-HRTimeline
XPONANCE LLC58,330$18.8M0.13%+3,74813F-HRTimeline
Resona Asset Management Co.,Ltd.in group Resona Asset Management Co.,L…58,047$18.7M0.09%+52413F-HRTimelineGroup
Saraza Management, LP57,325$18.5M7.75%-7,37513F-HRTimeline
Avalon Trust Co57,236$18.5M1.27%+35013F-HRTimeline
GLENMEDE TRUST CO NAin group GLENMEDE TRUST CO NA56,358$18.2M0.09%+7,89013F-HRTimelineGroup
STATE OF MICHIGAN RETIREMENT SYSTEM56,058$18.1M0.1%-20013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM55,957$18.1M0.11%-1,69813F-HRTimeline
Canoe Financial LP55,189$17.8M0.24%-22,56013F-HRTimeline
ABNER HERRMAN & BROCK LLC53,632$17.3M1.91%-52313F-HRTimeline
IEQ CAPITAL, LLC53,062$17.1M0.08%+25,71513F-HRTimeline
PBU - The Pension Fund of Early Childho…52,661$17M0.26%+19,80013F-HR/ATimeline
Robeco Institutional Asset Management B…in group Robeco Institutional Asset Ma…52,608$17M0.02%-10,58713F-HRTimelineGroup
Rafferty Asset Management, LLC52,151$16.8M0.07%-13,41713F-HRTimeline
Cullen/Frost Bankers, Inc.in group Cullen/Frost Bankers, Inc.50,781$16.4M0.19%+55813F-HRTimelineGroup
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…49,966$16.1M0.08%-2913F-HRTimeline
Creative Planningin group Creative Planning49,764$16.1M0.01%+9,73413F-HRTimelineGroup
CIBC WORLD MARKET INC.49,729$16.1M0.03%+79113F-HRTimeline
Global Frontier Investments LLC49,000$15.8M2.16%013F-HR/ATimeline
BARINGS LLCin group BARINGS LLC46,248$14.9M0.24%-24,82913F-HRTimelineGroup
Varma Mutual Pension Insurance Co46,100$14.9M0.09%013F-HR/ATimeline
Retirement Systems of Alabama45,550$14.7M0.05%-17513F-HRTimeline
DNB Asset Management ASin group DNB Asset Management AS44,583$14.4M0.05%+3,22213F-HRTimelineGroup
Suncoast Equity Management44,390$14.3M1.72%new13F-HRTimeline
AMALGAMATED BANK44,362$14.3M0.11%-1,38913F-HRTimeline
ProShare Advisors LLC43,186$13.9M0.02%-2,18313F-HRTimeline
Allianz Asset Management GmbHin group Allianz SE43,114$13.9M0.02%+1,36713F-HRTimelineGroup
STEPHENS INC /AR/in group Stephens Investment Managemen…42,556$13.7M0.17%+2,30013F-HRTimelineGroup
HighTower Advisors, LLC42,170$13.6M0.01%+14013F-HRTimeline
Orion Porfolio Solutions, LLC41,812$13.5M0.12%-1,51013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC41,675$13.5M0.05%-12,12713F-HRTimeline
IFM Investors Pty Ltd40,827$13.2M0.11%+1,28813F-HRTimeline
Motley Fool Asset Management LLCgroup of 2 filers holding40,609$13.1M-7,067Timeline
CORSAIR CAPITAL MANAGEMENT, L.P.40,101$12.9M1.92%013F-HRTimeline
KORNITZER CAPITAL MANAGEMENT INC /KS40,050$12.9M0.28%-4,81613F-HRTimeline
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.39,430$12.7M0.04%+5,42013F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP40,653$12.6M0.02%-35,45813F-HRTimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC38,692$12.5M0.05%-24613F-HRTimelineGroup
CAPTRUST FINANCIAL ADVISORS38,482$12.4M0.02%+7,29113F-HRTimeline
Artemis Investment Management LLP36,724$11.9M0.13%-4,50513F-HRTimeline
Ilmarinen Mutual Pension Insurance Co36,500$11.8M0.09%-13,77213F-HRTimeline
Cetera Investment Advisers36,423$11.8M0.01%+8,92913F-HRTimeline
KBC Group NVin group KBC Group NV36,063$11.6M0.03%-71913F-HRTimelineGroup
GM Advisory Group, LLC35,752$11.5M0.44%-6,03713F-HRTimeline
FRONTIER CAPITAL MANAGEMENT CO LLC34,992$11.3M0.12%-23,60113F-HRTimeline
ZEVIN ASSET MANAGEMENT LLC34,261$11.1M1.53%+25113F-HRTimeline
Utah Retirement Systems34,131$11M0.11%-56713F-HRTimeline
FACTORY MUTUAL INSURANCE CO34,000$11M0.12%+1,30013F-HRTimeline
Fayez Sarofim & Coin group Fayez Sarofim & Co33,620$10.9M0.03%+7,28413F-HRTimelineGroup
TOWER BRIDGE ADVISORS33,476$10.8M1.04%+11413F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.33,297$10.7M0.02%-154,92113F-HRTimelineGroup
Borer Denton & Associates, Inc.32,886$10.6M3.79%-5813F-HRTimeline
Janney Montgomery Scott LLC32,439$10.5M0.03%+20,98313F-HRTimeline
OPPENHEIMER ASSET MANAGEMENT INC.group of 2 filers holding32,347$10.4M-3,402Timeline
Police & Firemen's Retirement System of…32,297$10.4M0.09%+7913F-HRTimeline
Eurizon Capital SGR S.p.A.31,906$10.3M0.03%new13F-HRTimeline
CAPITAL GROUP INVESTMENT MANAGEMENT PTE…group of 2 filers holding31,735$10.2M-17,275Timeline
Sone Capital Management, LLC31,483$10.2M0.85%-2,81913F-HRTimeline
BEESE FULMER INVESTMENT MANAGEMENT, INC.31,236$10.1M0.65%+1,69213F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP31,199$10.1M0.01%+10,18613F-HRTimelineGroup
Premier Fund Managers Ltd30,668$9.94M0.7%-2,16013F-HRTimeline
Baird Financial Group, Inc.in group Baird Financial Group, Inc.30,711$9.91M0.02%+1,38213F-HRTimelineGroup
NEOS Investment Management LLC30,543$9.86M0.05%-3,25713F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC30,522$9.85M0.05%+6,74313F-HRTimeline
MOTCO30,391$9.81M0.91%+1,31813F-HRTimeline
PEAPACK GLADSTONE FINANCIAL CORP30,194$9.75M0.12%+1613F-HRTimeline
Elo Mutual Pension Insurance Co30,191$9.75M0.16%+1,99913F-HRTimeline
Engineers Gate Manager LP29,551$9.54M0.12%+2,99913F-HRTimeline
CWM, LLCin group CWM, LLC29,527$9.53M0.03%+15,59613F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC29,018$9.37M0.01%-8,84313F-HRTimelineGroup
Mediolanum International Funds Ltd28,645$9.28M0.1%+3,94513F-HRTimeline
Sumitomo Mitsui DS Asset Management Com…in group SUMITOMO MITSUI FINANCIAL GRO…28,640$9.24M0.07%+27413F-HRTimelineGroup
FIFTH THIRD BANK, NATIONAL ASSOCIATIONgroup of 2 filers holding28,548$9.21M+2,245Timeline
BRITISH COLUMBIA INVESTMENT MANAGEMENT …28,141$9.08M0.05%-8,20713F-HRTimeline
MML INVESTORS SERVICES, LLC28,019$9.04M0.03%+14,53313F-HRTimeline
Philadelphia Financial Management of Sa…28,000$9.04M2.9%new13F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV27,748$8.96M0.01%+10,87813F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP27,672$8.93M0.01%-11,24513F-HRTimelineGroup
CLIFFORD SWAN INVESTMENT COUNSEL LLC27,076$8.74M0.3%+2,78513F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC26,854$8.67M<0.01%-1,43713F-HRTimelineGroup
Vinva Investment Management Ltd26,725$8.66M0.11%+7,62913F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson26,747$8.63M<0.01%+2,39613F-HR/ATimelineGroup
Boston Common Asset Management, LLC26,695$8.62M0.55%-92213F-HRTimeline
State of Alaska, Department of Revenue26,675$8.61M0.09%-39013F-HRTimeline
OLD NATIONAL BANCORP /IN/26,400$8.52M0.14%+2,10013F-HRTimeline
GHP Investment Advisors, Inc.26,374$8.51M0.35%-14413F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC25,814$8.33M0.1%-55613F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…25,766$8.32M0.03%-2813F-HRTimeline
Callan Family Office, LLC25,719$8.3M0.19%+2,56713F-HRTimeline
JENSEN INVESTMENT MANAGEMENT INC25,569$8.25M0.16%+14,96613F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…25,105$8.1M0.02%+15,73913F-HRTimelineGroup
ALLSTATE CORPin group ALLSTATE CORP25,006$8.07M0.09%+9,37013F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\24,891$8.03M0.01%-6,57713F-HRTimelineGroup
OREGON PUBLIC EMPLOYEES RETIREMENT FUND24,637$7.95M0.1%+4213F-HRTimeline
M&T Bank Corpin group M&T Bank Corp24,572$7.93M0.03%-1,93113F-HR/ATimelineGroup
Ethic Inc.24,563$7.93M0.12%+49613F-HRTimeline
Qube Research & Technologies Ltd24,328$7.85M0.01%-30,44213F-HRTimeline
Dash Acquisitions Inc.23,289$7.73M1.61%+73413F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…28,622$7.61M0.02%-4,04213F-HRTimeline
FIRST MANHATTAN CO. LLC.23,071$7.45M0.02%-2,38513F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.23,049$7.44M0.01%-42113F-HRTimelineGroup
YHB Investment Advisors, Inc.23,048$7.44M0.53%-1,48713F-HRTimeline
Hyperion Capital Advisors LP23,001$7.42M3.57%new13F-HRTimeline
Federation des caisses Desjardins du Qu…22,989$7.42M0.03%+9,39813F-HRTimeline
Live Oak Private Wealth LLC22,945$7.41M1.03%+38213F-HRTimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…22,816$7.36M0.08%-26513F-HRTimelineGroup
SILVERCREST ASSET MANAGEMENT GROUP LLC22,735$7.34M0.05%-36313F-HRTimeline
FORA Capital, LLC22,617$7.3M0.53%+14,42013F-HRTimeline
Empowered Funds, LLC22,496$7.26M0.05%+3,89213F-HR/ATimeline
Waverly Advisors, LLC22,073$7.12M0.05%+19,80413F-HRTimeline
STRATEGY ASSET MANAGERS LLC21,983$7.1M1.16%-52913F-HRTimeline
Fiduciary Group, LLC21,616$6.98M0.6%+19413F-HRTimeline
CARDEROCK CAPITAL MANAGEMENT INC21,586$6.97M1.72%-85213F-HRTimeline
Bleakley Financial Group, LLC21,435$6.92M0.11%+1,77013F-HRTimeline
Violich Capital Management, Inc.21,365$6.9M0.81%-24313F-HRTimeline
Annandale Capital, LLC21,032$6.79M1.11%+8,41313F-HRTimeline
Bridgewater Advisors Inc.21,857$6.79M0.4%new13F-HRTimeline
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …21,029$6.74M0.01%+1,04413F-HRTimelineGroup
KWMG, LLC20,420$6.59M0.55%+71113F-HRTimeline
ASR Vermogensbeheer N.V.20,344$6.57M0.08%+34013F-HRTimeline
Bridgewater Associates, LP20,219$6.53M0.03%+6,85113F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC20,069$6.48M0.05%+17,05013F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC19,976$6.45M<0.01%-616,94613F-HRTimelineGroup
GERBER, LLC19,553$6.31M3.57%013F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP19,537$6.31M0.01%+4013F-HRTimelineGroup
COMMERCE BANKin group COMMERCE BANK19,432$6.27M0.03%+99813F-HRTimelineGroup
ABN AMRO INVESTMENT SOLUTIONSgroup of 2 filers holding19,265$6.22MnewTimeline
Obion Capital Management LP19,079$6.16M6.07%+2,89013F-HRTimeline
Avanza Fonder AB18,957$6.12M0.17%013F-HRTimeline
Savant Capital, LLCin group Savant Capital, LLC18,626$6.01M0.03%-17313F-HRTimelineGroup
MACQUARIE GROUP LTDin group MACQUARIE GROUP LTD18,502$5.97M0.04%-9,79613F-HRTimelineGroup
Kestra Advisory Services, LLCgroup of 2 filers holding18,334$5.92M-1,845Timeline
Sanctuary Advisors, LLC18,119$5.85M0.03%+2,36613F-HRTimeline
Blue Sparrow, LLC /DE18,000$5.81M0.1%new13F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC17,879$5.77M0.01%-7,88913F-HRTimeline
Haverford Financial Services, Inc.17,853$5.76M1.72%-4,16413F-HRTimeline
Bell Asset Management Ltd17,801$5.75M1.69%+1,86013F-HRTimeline
GAMCO Investors (Gabelli)group of 2 filers holding17,819$5.75M+5,403Timeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…16,947$5.47M0.04%013F-HRTimeline
PRUDENTIAL PLCin group PRUDENTIAL PLC16,747$5.41M0.03%-4,05313F-HRTimelineGroup
Williams Jones Wealth Management, LLC.16,715$5.4M0.07%-12,86213F-HRTimeline
Berman McAleer LLC16,609$5.36M0.73%-413F-HRTimeline
Investment Management Corp of Ontario16,450$5.31M0.07%-92213F-HRTimeline
Graham Capital Management, L.P.16,254$5.25M0.18%new13F-HRTimeline
WEDGE CAPITAL MANAGEMENT L L P/NC16,077$5.19M0.1%-6,73213F-HRTimeline
Sequoia Financial Advisors, LLC15,907$5.13M0.03%+70513F-HRTimeline
Gulf International Bank (UK) Ltd15,738$5.08M0.11%+6,00013F-HRTimeline
Wealthfront Advisers LLC15,672$5.06M0.01%+1,26213F-HRTimeline
Cresset Asset Management, LLC15,619$5.04M0.02%-15513F-HRTimeline
Illinois Municipal Retirement Fund15,480$5M0.06%+76813F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.15,434$4.98M0.08%-24,83613F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
JOHNSON INVESTMENT COUNSEL INC14,964$4.83M0.04%-2,38413F-HRTimeline
Aptus Capital Advisors, LLC14,884$4.8M0.04%+13,50613F-HRTimeline
Osmosis Investment Management UK Ltd13,983$4.51M0.12%+67413F-HRTimeline
PITTENGER & ANDERSON INC13,897$4.49M0.18%013F-HRTimeline
UNITED CAPITAL FINANCIAL ADVISORS, LLCin group UNITED CAPITAL FINANCIAL ADVI…13,842$4.47M0.03%+8,91013F-HRTimelineGroup
Entropy Technologies, LP13,833$4.47M0.21%-24,79613F-HRTimeline
Pacer Advisors, Inc.13,647$4.41M0.01%-5,85713F-HR/ATimeline
Trexquant Investment LP13,488$4.35M0.03%-6,32813F-HRTimeline
Jasper Ridge Partners, L.P.13,390$4.32M0.1%013F-HRTimeline
Atria Investments, Inc13,185$4.26M0.05%-79613F-HRTimeline
Integrated Wealth Concepts LLC13,107$4.23M0.03%+9,02913F-HRTimeline
Modera Wealth Management, LLC13,105$4.23M0.05%-16013F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…13,043$4.21M<0.01%-2613F-HRTimelineGroup
MIZUHO SECURITIES USA LLCin group MIZUHO FINANCIAL GROUP INC12,967$4.19M0.1%-2,68313F-HRTimelineGroup
Marks Group Wealth Management, Inc12,928$4.17M0.4%-6,74613F-HRTimeline
YACKTMAN ASSET MANAGEMENT LP12,915$4.17M0.06%013F-HRTimeline
BUCKHEAD CAPITAL MANAGEMENT LLC12,083$3.9M1.47%-22613F-HRTimeline
Norinchukin Bank, Thein group Norinchukin Bank, The12,013$3.88M0.05%-8413F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…11,845$3.82M0.01%+1,39713F-HRTimelineGroup
Laird Norton Wetherby Trust Company, LLCin group Laird Norton Wetherby Trust C…11,771$3.8M0.08%+25513F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC11,601$3.74M0.01%new13F-HRTimeline
Accurate Wealth Management, LLC11,832$3.7M0.45%+713F-HRTimeline
Clearstead Advisors, LLC11,444$3.69M0.03%+90613F-HRTimeline
Seascape Capital Management11,424$3.69M1.06%+39413F-HRTimeline
AGF MANAGEMENT LTDin group AGF MANAGEMENT LTD11,388$3.68M0.02%+3,10613F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP11,353$3.67M0.23%+3,34613F-HRTimeline
&PARTNERS11,213$3.62M0.02%-90513F-HRTimeline
MAI Capital Management11,210$3.62M0.02%+2,17813F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC11,055$3.57M0.01%+71213F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC11,026$3.56M<0.01%+1,99013F-HRTimelineGroup
Miller Capital Partners, Inc.11,008$3.55M1.72%+17513F-HRTimeline
Wealthspire Retirement, LLC10,997$3.55M0.21%-29013F-HRTimeline
REGIONS FINANCIAL CORPin group REGIONS FINANCIAL CORP10,939$3.53M0.02%-56113F-HRTimelineGroup
Louisiana State Employees Retirement Sy…10,900$3.52M0.06%-10013F-HRTimeline
ELEVATION POINT WEALTH PARTNERS, LLC10,724$3.46M0.08%+8,92413F-HRTimeline
World Investment Advisors10,654$3.44M0.06%+7,39013F-HRTimeline
Merit Financial Group, LLC10,614$3.43M0.03%+2,47813F-HRTimeline
Steward Partners Investment Advisory, L…10,573$3.41M0.02%+8,78213F-HRTimeline
Machina Capital S.A.S.10,561$3.41M0.67%+2,74713F-HRTimeline
Radnor Capital Management, LLC10,547$3.4M0.5%-8513F-HRTimeline
EXENCIAL WEALTH ADVISORS, LLC10,468$3.38M0.11%+50813F-HRTimeline
Maryland State Retirement & Pension Sys…10,467$3.38M0.07%013F-HRTimeline
OSTRUM ASSET MANAGEMENT10,432$3.37M0.19%+15713F-HRTimeline
Stanley-Laman Group, Ltd.10,425$3.36M0.41%+45613F-HRTimeline
SCOTIA CAPITAL INC.10,329$3.33M0.01%-2,30413F-HRTimeline
2Xideas AGin group 2Xideas AG10,275$3.32M1.3%-2,09613F-HRTimelineGroup